Surfacing apparatus.



[2U/@Mr om Fw/105 @wel L HARRIS SURFACING APPARATUS.

APPLICATION mso uw. 22. 1911.

L. HARRIS.

SURFACING APPARATUS.

APPLICATION FILED IAN. 22` IsII.

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L. HARRIS.

SURFACING APPARATUS.

APPuCATxoN HLED 1AN.22. 1917.

1,243,404. Patented oct. 16, 1917.

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ein' mQM Wm( snr s@ Louis nanars, or

- SURFACING CHICAGO, ILLINOIS.

APPARATUS.

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Application filed January@ To all who/m,` it may concern Be it knownthat I, Louis HARRIS, a citizen of the United States, residing at.Chicago, in the county of Cook and State of lllinois, have inventedcertain new and useful Improvements iii-'Surfacing Apparatus, of whichthe following is a specification.

My invention relates yto improvements in surfacing apparatus for planeor flat, preferablylwooden surfaces, and has especialreference toapparatus of this character for planing .andiscraping the surfaces ofbowlingalleys.

' rOne of the objects provideanapparatus, consisting of a. series organg of overlapping planes removably secured in a suitable slab or frameblock, movable longitudinally of the alle over the surfaces of suchstructures in paths substantially parallel with the grain of the boardsor wood of which the-alley is composed, whereby ,to prevent transverselyextending kerfs, tool marks, or scratches to divert. the path of theball as when the usual rotary planer and sander is used for the purpose.

yAnother lobject ofmy invention is to simplify and cheapen the drivingand guiding means for the planes without requiring a special track to belaid upon which to move the surfacing apparatus.

Other ,and further ohj ects of my invention will become readily apparentto persons skilled in the art, from a consideration of thef followingdescription when taken in conjunction with they drawings, wherein`Figure V1 is a' broken away plan view of a bowling ,alley showing myapparatus as applied thereto. c

Fig. 2 7s alongitudinal section taken on line 2-2 of Fig. 1.

Fig. 3 is anenlared plan view of the plane containing bloc Fig. 4 isafurther enlarged broken away portion of the plane block, showing theYmannenof fastening .the planes and scrapers in the block. Y

Fig. 5 isian enlarged section taken on line 5-5 of Fig; A3 showing' theplane block and one of the planes. y y

jFig. 6 `is a similar .section v showing a scraper.

"Figjfl is a 'detailof'the'plane kfastening latch.4

of mv 'nvention is to Qlnallthe views" the same reference chari' actersare employed'to indicate similar parts. @MyLk apparatus Vconsists r'esser'itially kof a Specification of Letters Patent.

Patented Uct. 16, 1917.

2, ieri.k serial No. 143,726.

block or slab of `cast iron, or the like, with aplurality or groupcfapertnres ateach en to receive removable .planes arranged ininterlapped rrelation `and so positioned that when the block is beingA,pulledor driven in one, direction, oneV series or set of planes willbe operatively active, the other series having been previo uslvautomatically raised kso that their .bits will not .touch the surfaceover whichtheyare passing,y and when the block is being-.movedintheopposite direction-the formerly .idle series are-depressed so as tomake engagement with the underlying surface of the alley ^while thebefore-mentioned ,active series are raise'dfrom the surface over whichthe block isto be,` passed. It further consists in especial and improvedmeans for dragging the block over the surface Ato be planediand otherdetails of construction to be hereafter morejfully explained.

10 isablock, preferably of cast iron, or similar material, containingtwo rows of perforations,11 and'1Z, at each end, within which tocontainplanes 13 or scrapers 14. The perforationsll and 12 are soarranged, as will be observed, vthat the bits of the planes .willoverlapsothat the planes kwill jointly operateas if the cutting orplaning werebeing done with a single' blade. Each ,of theperforations, 11 andV12,'i's provided with a shoulder 111, at one end, undercut, as at 15,under which to receive a similar shoulder 16 projectingforwardly fromthe plane or scraper to prevent that end. of the plane from rising abovethe plane block. 'The lower surface 17 of the planes is designed tobe inlinewith thelower surface 18 of the plane block. `"Iheplane block isalso provided with ,another shoulder 19, somewhat longer than theshoulderl, havingpa depression in its'face wherein to. receive anopenhelical spring 20 which is adaptedtolift the end of the plane uponwhich the shoulder 19. isr contained. when the latch 21 is removed fromits path.v In other respects the plane. 13 and the scraper 14: are oftheusual conventional form, each having abit 22 and 23, respectively,secured by a thumb 'nut'v 24 and a pivoted lever 25 as usual in 4suchstructures, and where I have used ktheyterm plane in theclaims, it isinftendedgto befsuiciently comprehensive to include` the interchangeableScrapers.

l lNear ,the center of the plane block 10 isa rcablet,1gui ding sheave23, mounted upon the Vstandard 9A, one on each side. These sheaves iastenings.

. shaft slk end lot the block being a6 are moved, aXially,

Qi ina-saca are to guide the ropes or cables used to pull the planeblock across the surface to be pla-ned. Near each end of the planeblock, and on either side thereof, are eye bolts 25 to which to securethe ends of the cables. `In substantially the center of the plane block10 is a seat for accommodation of the operator Who may ride upon Whenadditional Weight is necessary to hold it to the underlyring` surface tobe planed.

An electric motor 27 is mounted upon the guide track 28. rl'he track isheld in place, at oneend of the alley 29, by means of the springs SO-SOor other'preferably yielding These springs give tension to the cables 8land 32 and hold them in close contact with the driving sheaves 40. Gnthe motor shaijt 33 is a small pinion 34 geared into a larger gear Wheel35. The gear Wheel 35 is secured to a transverse shaft 36 which hasbearings in a frame 37 as at 38 and 39. @n the outer ends of the shaft36 are sheaves 40%() for the cables 3l and 32, respectively, At theother end of the alley 29, is a similar all, fhaving bearings instandards 42-2 that are secured to a longitudinally adjustable structureor base plate 43. rThe standards 42-4l2 are separated so that thesheaves Het on the shaft 4l, are the same distance apartas the sheaves40%0 on the shaft 8G. The base plate 43 is slidable in a guiding castingor trackway t5 in a direction transversely of the alley 29. The castingl5 may be secured in place in any desirable manner, as by block and fallor by bolts or the like. The springs 30-30serve to put sufficienttension on the cables 31, 32 and theY sheaves 40-10 to produce therequired traction to move the plane block l0 over the alley Way.

rlhe rotation of the armature of the inotor 27 will cause the sheaves40-40 to move the cables 3l and 32 in either direction, t0- Ward themotor or from it, and thereby to move the plane block 10 incorresponding directions. When the block is being moved toward the righthand side, the planes `on the lett end of the plane block l0 areinoperative condition, the planes on the other lifted from Contact withthe-underlying surface to beV planed.

The latches 2l which hold the planes and scrapers doivn to their Workare connected together by rods 4:6 so that When the rods all of thelatches 2l of a series are moved in a given direction, either to holdthe planes in their positions or to release them, whereupon `the springs2O will littthem so that the blades ot the lifted planes will not be incontact With the underlying surface of the alley. rlhe rods tifareconnectedat one end to the bell cranks 18 and 49, respectively, andthese bell cranks are connected together by links 50, the arrangementbeing such that When the link the plane block one directionuone setmoved v1n position to permitthe springs 20 to raise the planes 'orScrapers, as shoivn on ot Fig.V 3, and when the right hand side they aremoved in the opposite direction the latches 2l are moved to suchpositions as to depress the planes or Scrapers against the resistance ofthe springs 2O to holdthem in operative positions as shown in Figs. d, 5and 6.

Now when the plane block vl0 is moving to the right, as shown by thearrow in Fig. 3, the set ot' the planes or scrapers on the left end ofthe block are depressed into operative position While the planes orScrapers on the other end of the bloclrare raised out of contact withthe underlying surface.

l/Vhen the block has been moved the `full extent of the alley and themotor is reversed so as to move the block in the opposite di'- rection,then the hand wheel 52 is rst turned so as to cause the latches 2l toVrelease the planes on the left end and depress those on the right end,so that when the block l() is being` moved to the left thev planes onthe right or trailingrend are at Worlt. v Y lifter the block yl0 hasbeen pulled over the alley, beginning atoneside thereof, the motor 27may be moved laterally so that the bloclt will move over to the new pathand thus the motor and the counter shaft l may be moved in therespective guide Ways 2S and 45, until the entire alley has been lthusplaned. After the planing operation has been completed the planes 18 arereplaced by the Scrapers lll and the operation is substantiallyVrepeated. 1 Y ,i Y

l have not shown the electric circuits for the motor nor the means forreversing it,

as such means do not constitute any part of my invention. Y v

Having described my invention, What l claim is 2- Y l. In a device ofthe character described the combination of spaced-apart parallel guidetracks, or Ways to be placed at opposite ends of a surface to be planed;a structure, one for each Way, carrying spaced-apart sheaves andlongitudinally adjustable on said Ways; a motor, for driving one pair ofsheaves, movable with the respective structure, a block, carrying aplurality of planes, movable betvveensaid Ways and a pair of chains, orcables overlying appropria-te sheaves on said structures and havingtheir opposite ends connected to opposite ends of said plane block.

Q. ln a. devlce ci' the character described the combination ofspaced-apart parallel sheaves on said structures and having theiropposite ends connected to opposite ends of said plane block and springsconnected to one structure to increase rictional contact between thedriving sheaves and the respective chains or cables.

In testimony whereof l hereunto set my hand in the presence of twosubscribing Witnesses.

LOUIS HARRS. In the presence of# STANLEY WV. COOK, MARY F. ALLEN.

Copies of this patent may be obtained for fivek cents each, byaddressing the Commissioner of Patents,

Washington, I). C.

